<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
	<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
	<title>Document</title>
	<style type="text/css">
		body{
			color: red;
		}
		p{
			color: blue;
		}
		.box{
			color: green;
		}
	</style>
</head>
<body>
	<p class="box" >学并思</p>
</body>
</html>